Process of oxidizing oils.



No. 672,743. Patented Apr. 23, l9'0l1. v A. s. BAMAGE.

PROCESS OF OXIDIZIN G 0|L'5.

(Application filed Aug. 25 1900.) (No Model.)

mourns PETERS no. morau'ma. wAsmus'reN. D. c.

: UNITED STATES PATENT OFFICE.

ALEXANDER S. RAMAGE, OF CLEVELAND OHIO.

PROCESS OF OXIDIZING OILS.

SPECIFICATION formingpart of Letters Patent No. 672,743, dated April 23,1901.

Application filed August 25, 1900.

To all whom it may concern.-

Be it k nowu that I, ALEXANDER S. RAMAGE, a resident of Cleveland, inthe county of Cuyahoga and State of Ohio, have invented certain new anduseful Improvements in Processes of Treating Oils; and I hereby declarethe following to be afull, clear, and exact description of the inveution, such as will enable others skilled in the art to which itpertains to make and use the same.

My invention relates to an improved process for the production of oilssuitable for use a, which is provided with a suitable valve a 1)represents a steamjacket incasing the bottom-and sides of the receptaclea. The steam-jacket is provided with the usual feed and exhaust pipes 12and b, respectively.

0 represents an ozonizer.

e represents a pump for forcing air into the ozonizer.

61 represents a coil of pipe provided with perforations d, and 6represents a pipe connecting the coil 61 with the ozonizer c.

In carrying out my process I take the oil which I desire to treat,preferably linseed or menhaden oil, and place it in the tank a. Steam isthen admitted to the steam-jacket, and the oil is heated to about 200Fahrenheit, or below the point of decomposition of the oil. I then addto the oil a quantity of platinized asbestos, platinu m-black, or otheroxygen-occluding substance. I find that ten per cent.

platinized asbestos works extremely well; but I do not limit myself toany exact percentage. Air is next admitted to the ozonizer underpressure and the ozone produced therefrom is forced through the pipe 0into the coil 01 Serial No. 28,025. (No specimensfl and is driventhrough the perforations (1 into the oil. After blowing the ozonethrough the oil four or five hours the character of the oil will becompletely changed, the odor of the oil will have been completelydestroyed, and the oil will have risen in gravity to about .975. Whenthe operation is completed, the oil is run off and filtered underpressure.

By my process I do not obtain an ordinary oxidized oil, for throughextensive experi ments I have found that in making varnish with this oilit requires only one-tenth the amount of gum to give the same results asheretofore obtained when using the oils now upon the market. In otherwords, the oil which I obtain by my process is practically a varnishcapable of withstanding weather.

A sample of oil prepared according to my process when placed upon glassor wood dries in about five hours to a firm, hard, glossy, and elasticfilm. Also the lasting powers of oil thus prepared are very great, andpaint made with this oil retains its glossy appearance after longexposure.

In carrying out my process pure oxygen or air may be used instead ofozone in connection with the platinum-black or other oxygenoccludingsubstance; but this is not practical, as the time necessary to completethe process is therebylengthened. When using pure oxygen or air, it willrequire two or three days to accomplish the same results that can. beobtained in a few hours by the use of ozone.

I have found that in producing this oil for commercial purposes ten percent. platinized asbestos gives the best results in proportion to thecost of production. To prepare ten per cent. platinized asbestos, ninetypounds of asbestos fiber is soaked in a solution of seventeen pounds oftetra chlorid of platinu rn. To this is added fifteen poundsformaldehyde (forty per cent.) and ten pounds caustic soda in solution,and it is allowed to stand about twelve hours. The asbestos fiber isthen filtered off and washed until the washings show brown. It is thenallowed to stand a few hours, after which it can be freely washed untilall the soluble salts are washed out. This washing is very necessary inorder to obtain. the most active material, as a trace of sodium chloridlessens the occluding power.

What I claimis-- 1. The herein-described process of treating an animal,vegetable or other non-drying oil, so as to produce a drying-oilsuitable for use in the manufacture of paints and varnishes, consistingin' oxidizing the said oil in the presence of an oxygen-occludingsubstance.

2. The herein-described process of treating an animal, vegetable orother non-drying oil, so-as to produce a drying-oil consisting first inimmersing in the body of the oil to be treated an oxygen-occludingsubstance and then blowing through the oil an oxidizing agent.

3. The herein-described process of treating an animal, vegetable orother non-drying oil, so as to produce a drying-oil, consistinginimmersing in the body of oil to be treated an oxygen-occludingsubstance, then heating the oil and forcing therethrough an oxidizingagent.

4. The herein-described process of treating,

oil to produce a paint medium consisting in immersing i'nth-e oil aquantity of plati-nu mblack and forcing an oxidizing agent through thebody of the oil.

5". The herein-described process of treating oil to produce a paintmedium consisting in heating the oil in the presence of platinumblackand torcimg," an oxidizing agent through the oil while heat-ed.

6. The herein-described process of treating oil to produce a paintmedium consisting in forcing ozone into the body of oil in the presenceof an ozone-occluding agent, such, for

instance, as platinum-black.

7. The herein-described process of converti Hig non-drying oil-s intodrying-oils consisting in treating said non-drying oils with ozone inthe presence of an ozone-occluding agent,

a such, for instance, as platinum-black.

8. The herein-described process of converting non-drying oil into adrying-oil consist-

